Hydrocarbon motor



Mar. 13, 1923.

L. M. WOOLSON HYDROCARBON MOTOR Filed Nov.

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Patented Mar. 13, 1923.

UNITED STATES ETENT OFFICE.

LIONEL M. WOOLSON, OF DETROIT, MICHIGAN. ASSIGNOR TO PACKARD MOTOR GAR COMPANY, OF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

HYDROCARBQN MOTOR Application filed November 5, 1919. Serial No. 335,806.

To all whom it may concern:

Be it known that I, lnoNnL M. \VooLsoN, a citizen of the United States. and resident of Detroit, \Vayne County. State of Michtan; have invented certain new and useful In rovements in Hydrocarbon lllotors, of which the following a specification.

This invention relates to hydrocarbon motors and particularly to means for heating;

the mixture passing from the carburetor to the motor cylinders.

More specifically, the invention constitutes an improvement. over my invention do scribed in application Serial No. 2523.627.

filed September 13, 1919.

One of the objects of the invention is to improve the action of a heater device of the type described in said pending application.

Another object of the invention is to connect the air inlet of an auxiliary carburetor with the auxiliary air intake of the main carburetor of the motor.

Another object of the invention is to better control the richness of the mixture of a carbureting means such as shown in said application.

Other objects of the invention will appear from thet'ollowing description taken in connection with the drawings which form apart of this specification and in which Figure 1 is a vertical section through a heater and carbureting means embodying the invention, and

Figure 2 is a, transverse section on the line 22 of Figure 1.

Referring to the drawings. 10 represents a hydrocarbon motor, a portion only of the cylinder casting being shown on the drawing. T iis may be a single or a inultiwyliii der motor. The motor carburetor or fuel mixing device is indicated generally by the numeral 11, and in the form shown. which is of the well known lackard type. 12 is the mixing chamber. 13 the Ventuli mixing tube 11 the fuel nozzle arranged'in the tube 13, 15 th main air intake and 11' the auxiliary air intake. manually adjustable valve 1? is arranged in the main air intake. an arm 13 and rod 18' being provided to cfi'ect the adjustment. A poppet valve 19 yieldinglv closed by springs .20 governs the amount of air passing through the auxiliary inlet 16. For the )urpose of choking the carburetor. that is oi shutting off practically all of the air thereto, the valve 17 may be turned to I zle.

the position shown in dotted lines so that it practically closes the main air intake 15 and bears against an extension 21 on the valve 19 thereby holding the latter valve positively closed.

The fuel nozzle 14 may be supplied with gasoline or other tool by any well known means, and in the present form it is supplied vfrom an adg'acent float chamber 27, a pas sage 28 leading to the lower end of the noz- A float 29 operates through pivoted lovers Il on a naive ill to maintain a subniantially constant level of gasoline in the float chamber. this lm'el usually being arranged as shown slightly below the top of the nozzle 14. The valve 31 seats at 32 and controls the supply of gasoline entering the chamber from the main fuel line or pipe 33.

It will be understood that when there is a depression in the mixing chamber 12 as by reason of the suction from the motor, air will be drawn through the Venturi tube 13 past the nozzle 14 from which gasoline or other fuel will flow. The gasoline and air w'll mix as they pass upwardly through the tu ie 13 and. will be further mixed with the air drawn into the mixing chamber 12 through the auxiliary air inlet 16, the valve 19 opening slightl 1 because of the suction. The extent of valve opening will depend upon the suction and consequently approximately the correct mixture will be supplied to the motor at all speeds. When the valves 17 and 19 are closed only a slight amount of air will pass the valve 17 and none will pass the'valve l9 and the greater suction thus produced on the fuel in the nozzle 14 will result in a very rich mixture in the chamber 12. this mixture being particularly adapted for starting purposes or when the motor is cold.

The mixing chamber of the carburetor 11 is adapted to be connected to the motor so that the mixture may be supplied to the cylinders ol' the latter. Asshown. this conneclion is an intake pipe 22 in the shape of an elbow having a flange 23 for connection to a flange :21 on the carburetor. and :1 things 25 for connection to the motor 10. Somewhere in the passage between the carburetor and the motor a throttle valve is arranged, and in this form a butterfly valve 21' pivolally mounted near the upper end of the mixing chamber 12.

liy this construction the intake pipe or 

